Dioscoreales
Family: Afrothismiaceae1
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Afrothismia baerae | Cheek (2004 "2003") | 2003 or before | Shimba Hills National Reserve, Kenya | Missing | Access | |
| Afrothismia pachyantha | Schltr. (1906) | 1905 | Mt. Cameroon, Cameroon | Extinct | Access |
1 Cheek, Martin, Gomez, Marybel Soto, Graham, Sean W. and Rudall, Paula J. (2024). Afrothismiaceae (Dioscoreales), a new fully mycoheterotrophic family endemic to tropical Africa. Kew Bulletin 79: 55-73. https://doi.org/10.1007/s12225-023-10124-w
Family: Burmanniaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Burmannia indica | Jonker (1938) | - | (rediscovered) | Idukki district, Kerala, India | Rediscovered | Access |
|
Haplothismia exannulata |
Airy Shaw (1952) |
- |
(rediscovered) |
Kerala, India |
Rediscovered |
|
|
Marthella trinitatis |
(Johow) Urb. (1903) | - | 1898 | Mount Tucuche, Trinidad | Missing | Access |
|
Oxygyne hyodoi |
C.Abe & Akasawa (1989) | Hina-no-bonbori | 9 October 1988 | Nishiumi-Cho, Minamiuwa-gun, Ehime Prefecture, Shikoku, Japan | Extinct | Access |
|
Oxygyne triandra |
Schltr. (1906) |
- |
September 1905 |
Cameroon |
Extinct |
|
|
Thismia americana |
N.Pfeiff. (1914) |
Banded trinity |
1913 or 1914 or 1916 |
Illinois, USA |
Extinct |
|
|
Thismia caudata |
Maas & H.Maas (1986) |
- |
(rediscovered) |
Rio de Janeiro state, Brazil |
Rediscovered |
|
|
Thismia clavigera |
(Becc.) F.Muell. (1891) |
- |
(rediscovered) |
Bornean Malaysia & Thailand |
Rediscovered |
|
|
Thismia fungiformis |
(Taub. ex Warm.) Maas & H.Maas (1986) |
- |
? |
Rio de Janeiro state, Brazil |
Extinct |
|
| Thismia gardneriana | Hook.f. ex Thwaites (1864) | - | (rediscovered) | Sri Lanka | Rediscovered | Access |
|
Thismia kobensis |
Suetsugu (2018) |
- |
(rediscovered) |
Kobe, Hyōgo Prefecture, Honshū, Japan |
Rediscovered |
|
|
Thismia macahensis |
(Taub. ex Warm.) Hatus. (1976) |
- |
? |
Rio de Janeiro state, Brazil |
Invalid (junior homonym) |
|
|
Thismia neptunis |
Becc. (1878) |
- |
(rediscovered) |
Gunung Matang massif, western Sarawak, Bornean Malaysia |
Rediscovered |
|
|
Thismia tuberculata |
Hatus. (1976) |
- |
24 September 1972 |
Mount Kirishima, Kagoshima Prefecture / Miyazaki Prefecture, Kyushu, Japan |
Extinct |
Family: Dioscoreaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Dioscorea brownii | Schinz (1900) | (rediscovered) | southern KwaZulu-Natal, South Africa | Rediscovered | Access | |
|
Dioscorea buchananii undatiloba |
(Baker) Wilkin (2015) |
|
1921 |
Limpopo & KwaZulu-Natal, South Africa |
Missing |
|
|
Dioscorea elephantipes |
(L'Hér.) Engl. (1908) |
|
(rediscovered) |
Northern Cape Province, South Africa |
Rediscovered |
|
|
Dioscorea inopinata |
Prain & Burkill (1927) |
|
(rediscovered) |
Thailand |
Rediscovered |
|
|
Dioscorea lepcharum |
Prain & Burkill (1914) |
|
(rediscovered) |
Arunachal Pradesh, India Pradesh, India |
Rediscovered |
|
|
Rajania prestoniensis |
R.Knuth (1924) |
|
14 November 1914 |
Cuba |
Invalid (synonym) |
Family: Nartheciaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
|
Aletris makiyataroi |
Naruh. (1973) | - | 1970's | Shikoku, Japan | Extinct or Invalid (synonym) | Access |
| Narthecium montanum | (Small) Grey (1938) | Appalachian yellow asphodel | 1919 | Henderson County, North Carolina, USA | Extinct | Access |